Velopedia Bicycle Archive

2011 Specialized Stumpjumper Expert Carbon 29er

Original specifications: SRAM Mix drivetrain · 29" wheels.

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At a glance

Model year
2011
Category
Mountain
Sizes
15.5", 17.5", 19", 21"
Colors
Red/Wht
In this record
26 specifications · archived image
Archive ID
21941
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Historical catalog variants

Archived sizes and colors

4 item records

Item-level catalog entries recovered from Velopedia’s original bicycle archive. They document how this model was listed historically; they do not identify the frame size associated with legacy reference geometry or indicate current availability.

Published sizes

15.5"17.5"19"21"

Published colors

Red/Wht
View 4 archived size/color combinations
SizeColor
15.5"Red/Wht
17.5"Red/Wht
19"Red/Wht
21"Red/Wht

Historical catalog evidence. Exact specifications and naming may vary by market, production run or manufacturer revision.

Frameset

Frame ConstructionBonded/monocoque
Frame MaterialFACT 8M carbon
ForkRockShox Reba 29, 90mm travel
Fork MaterialAlloy Steerer, single crown

Drivetrain

Component GroupSRAM Mix
ShiftersSRAM X.9
Front DerailleurSRAM X.7, 34.9mm clamp
Rear DerailleurSRAM X.0
CranksetSRAM Carbon S-2200, 24/38 teeth
Bottom BracketSRAM PF-30
CassetteShimano HG81
Rear Cogs10-speed, 11 - 36 teeth
ChainKMC X10
PedalsResin Test Ride Pedals

Brakes

BrakesAvid Elixir CR SL brakes, Avid Elixir CR SL levers

Cockpit & Contact Points

Headset1 1/8" - 1 1/2" Campy spec integrated sealed cartridge bearing
HandlebarSpecialized XC flat 31.8mm
Handlebar ExtensionsNot included
StemSpecialized XC
SaddleSpecialized BG Phenom Comp
SeatpostAlloy single bolt setback, 27.2mm diameter

Wheels & Tires

HubsSpecialized Hi Lo disc
RimsDT Swiss X450SL, 32-hole
SpokesDT Swiss Competition stainless, 1.8/1.6 double-butted
Front Tire29 x 1.95" S-Works Renegade
Wheel Size29" wheels

Published drivetrain ratios

Gearing

Chainring ÷ rear sprocket

Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.

Published build38/24T · 11–36T · 10-speed
Lowest0.67:1 Highest3.45:1 Total range518%

The bar uses the same mechanical-ratio calculation as Compare. Wheel-dependent speed appears only when the record includes an exact ISO/ETRTO rear tire size; no tire size is assumed.

Parts & serviceability

Find replacement parts

3 top part searches
ChainExact archived part
KMC X10 Exact archived model
CassetteExact archived part
Shimano HG81 Exact archived model
Bottom bracketQualified part search
SRAM PF-30 Named archived component — verify dimensions
More qualified parts (4)
SaddleQualified part search
Specialized BG Phenom Comp Named archived component — verify exact version
HandlebarQualified part search
Specialized XC flat 31.8mm Named archived component — verify dimensions
SeatpostMatching fit standard
27.2 mm seatpost Published diameter — verify length and setback
RimsQualified part search
DT Swiss X450SL, 32-hole Named archived component — verify dimensions

Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.

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Bike-specific inspection checklist 20 checks based on 6 archived component groups Open checklistClose checklist
0 of 20 checked Progress stays in this browser for this bike.

This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 2011 Specialized Stumpjumper Expert Carbon 29er · Mountain bike, front suspension · Published sizes: 15.5", 17.5", 19", 21"

Archived: Frame: Bonded/monocoque · Fork: RockShox Reba 29, 90mm travel · Alloy Steerer, single crown

Archived: Fork: RockShox Reba 29, 90mm travel

Archived: Group: SRAM Mix · Shifters: SRAM X.9 · Front derailleur: SRAM X.7, 34.9mm clamp · Rear derailleur: SRAM X.0 · Crankset: SRAM Carbon S-2200, 24/38 teeth · Bottom bracket: SRAM PF-30 · Cassette: Shimano HG81 · Rear cogs: 10-speed, 11 - 36 teeth · Chain: KMC X10

Archived: Brakes: Avid Elixir CR SL brakes, Avid Elixir CR SL levers

Archived: Wheel size: 29" wheels · Rims: DT Swiss X450SL, 32-hole · Hubs: Specialized Hi Lo disc · Front tire: 29 x 1.95" S-Works Renegade

Controls and contact points

Archived: Headset: 1 1/8" - 1 1/2" Campy spec integrated sealed cartridge bearing · Handlebar: Specialized XC flat 31.8mm · Stem: Specialized XC · Seatpost: Alloy single bolt setback, 27.2mm diameter · Saddle: Specialized BG Phenom Comp · Pedals: Resin Test Ride Pedals

Before and during the test ride

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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